Authors:
W. Haerdi Université de Genève Institut de Chimie Analytique 1211 Genève 4 Suisse

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R. Daniel Université de Genève Institut de Chimie Analytique 1211 Genève 4 Suisse

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Abstract  

In the first part, the fast-neutron flux available in reactor cores was utilized to define experimentally the sensitivity for the determination of 12 different elements, based on fast-neutron nuclear reactions. The fluxes available with our AGN-201 P reactor are in the range of 109–1010 n·cm−2·sec−1 in the 1–4 MeV region. A good sensitivity was obtained for27Al,52Cr,56Fe,28Si,23Na [by (n, p) reaction],27Al,31P,89Y [by (n, α) reaction] and197Au,183W,89Y [by (n, n′) reaction]; the elements Cl, Ca, Pb failed to give reactions. In the second part, a non-destructive method for the determination of silicium based on the reaction28Si(n, p)28Al is proposed. The limit of determination is about 0.6 mg for a neutron flux of 109 n·cm−2·sec−1. As an example, Si in dimethylpolysilane was determined.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)